Carton



H. L. GREVE May 31, 1932.

CARTON Filed Feb. 21, 1929 l I I l E [T JEE [IVVENTOR 4 A TT Y Patented May 31, 1932 UNITED STATES PATENT OFFICE- HERMAN L. GREVE, OF HOLLIS, NEW YORK, ASSIGNOR TO INTERNATIONAL MAILING TUBE AND WRAPPER COMPANY, OF BROOKLYN, NEW YORK CARTON Application filed February 21, 1929. Serial No. 841,595.

My invention relates to cartons.

The object of my invention is to provide a carton which may be used for shipping dress goods and other articles of commerce in safety to their destination.

Further objects of my invention are to provide a carton from a single piece or sheet of fibrous material such as fibre-board or card-board, which sheet is scored and slitted to permit it to be folded properly to provide a carton having corner portions which are interfolded to strengthen the corners, and to provide means for preventing .the cover portions of the carton from moving relatively, by interlocking end flaps.

Referring to the drawings which form a part of. this specification,

Fig. 1 is a plan view of a blank which has been slitted and scored ready for folding into a carton embodying my invention.

Fig. 2 is a plan view of the carton in its open condition.

Fig. 3 is an end view of the carton as it appears when closed and locked ready for shipping. I

Fig. 4 is a cross sectional view thru the carton to show the construction by means of which the cover portions and end flap portions are firmly interlocked, and also illustrating the means provided for increasing the longitudinal stiffness and strength of the carton.

The dotted lines in Figure 1, indicate the scores which permit the blank to be folded easily into the form shown in Figure 2.

-A-A etc., indicate slits which permit the end flaps B- respectively, to be folded on the lines B.

indicates the bottom and C. the side portions of the carton, and D and E the cover portions thereof. FF- respectively, indicate the ends of the carton, which are folded on the lines F F and G to form reinforced corner portions -H, which may be stapled to the side portions C' as illustrated in Figure 2, to stiffen and strengthen the corners of the carton. The ends --F are provided with slits II respectively for the purpose of forming end tabs J J respectively, which extend from about the with slits at J- to permit folding on the lines K- and on line K to provide the closed jointed interfolding seam -L which extends the entire length of the carton and forms a dustproof and pilfer-proof joint, and by reason of the four thicknesses of material, makes a stiff and strong construction.

Snap-locks M- comprising male and female parts of the usual construction used for sealing cartons of this type, are fastened to the tab and cover portions as shown, to permanently lock the carton when ready for shipping, but the carton may be sealed or locked in any other desirable manner.

When the carton is folded, the flap end portions B rest outside of the end portions F, as shown in Figure 3, and the tabs -J overlap their ends. The length of the slits B and J correspond to the width of the longitudinally extending portions forming the interfolding seam L,, and when the carton is folded and closed, the seam prevents outward movement, and the abutment'of the end flaps at B prevents further relative inward movement of the joint portions L.

Having thus described my invention, I claim as new:

1. A carton made from a single sheet of fibrous material having end portions each of which is provided with a tab formed from a part thereof and extending from a point at a distance from the bottom thereof to its upper edge, side portions having cover portions connected thereto, and connected together by an interfolding joint end flap portions carried by the cover portions and extending under said tabs, said end flap portions being slitted for interfitting assembly to limit movement of the end flap portions toward each other, and means for connecting said tabs to a cover portion.

2. The construction called for by claim 1, characterized by the slit in each end flap portion extending inwardly from the outer lateral edge thereof with the inner ends of the slits abutting when the end flap portions are in folded carton formation.

In testimony whereof I have affixed my signature.

HERMAN L. GREVE. 

